Math Concept Reader MCR g4 exercising for beads

Math Concept Reader

Math Concept Reader Exercising

for Beads

DIGITAL FINAL PROOF

Expedition: Antarctica

by Aenea Mickelsen

Copyright © Gareth Stevens, Inc All rights reserved.

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Printed in the United States of America

ISBN 13: 978-0-15-360187-3

ISBN 10: 0-15-360187-6

1 2 3 4 5 6 7 8 9 10 179 16 15 14 13 12 11 10 09 08 07

Math Concept Reader Exercising for Beads

by Sarah Mastrianni

Photographs by Kay McKinley DIGITAL FINAL PROOF

The after-school health program is a huge hit with the students at Wickford Elementary School

They meet every day to participate in exercises such

as walking and running They enjoy the exercise and

the chance to get together

There is an extra reward for the students, too!

They earn a bead each time they run or walk a

mile during the program The students pick their

favorite color from a box that is filled with beads

The students like to tie the beads to their shoelaces

Students with beaded shoelaces walk up and down

the halls of the elementary school It is easy to

figure out which students participate in the health

program

A Colorful Program

Chapter 1:

Desiree really enjoys running in the after-school health program She thinks running is more fun than playing soccer or softball She has attended the after-school program for the past several months

She spends many days after school running around the track with her classmates Her effort has paid off She has already earned ten beads That means she has run ten miles!

Desiree decided that she wants to earn 16 beads because then she can put eight beads on each shoe

Desiree wonders how many more beads she needs

to get 16 beads in all

Desiree is excited about earning more beads

When she takes a break from running she decides

to do a little math

3

DIGITAL FINAL PROOF

Desiree is thirsty from running, so she drinks a bottle

of water Then she sits in the shade to rest for a few

minutes and thinks about a math problem She takes a

notebook and pencil from her backpack Desiree wants

more beads for her shoelaces She has earned ten beads

already and she wants to have a sum of 16 beads

She writes a number sentence to help her figure out

how many more beads she needs to earn

˙ + 10 = 16

She also draws a picture to help her She does the

math Desiree figures out that she needs six more beads

6 + 10 = 16 In just another six miles, Desiree will have

eight beads for each sneaker! Before she goes home

today, Desiree plans to run a quarter mile

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Liam and Emilio also have a problem to solve

Each wants to earn 14 beads The city is hosting a

three-mile run next week Any student who runs or

walks in the race will help raise money for the new

city park Any student from Wickford Elementary

School who participates in the event will earn three

beads

Liam and Emilio will run in next week’s community event They will help raise money for

the park and they will each earn three beads They

cannot wait to fill up their sneakers with beads

Now they want to figure out how many more beads

they need to earn after the three-mile run to make

their goal of 14 beads

Liam and Emilio find a picnic table close to the track

There, the two classmates get to work on figuring out

how many beads they need to reach their goal Since

they just joined the after-school health program, they

have not yet earned any beads

By the end of the week they know they will each have three beads They also know that they each want

to earn 14 beads They write a number sentence

˙ + 3 = 14 They need to find the missing addend They sketch their ideas on a sheet of paper They talk about their

solution, and Liam and Emilio figure it out They each

will need to earn 11 more beads after the three-mile

event

7

DIGITAL FINAL PROOF

Liam and Emilio are the newest students in the after-school health program Tucker, however, has

attended the program since it began He told his

friend, Suzie, about the three-mile event planned

for next week

Suzie is interested in learning more about the three-mile event and the health program She stops

by the track after school to talk to Tucker and other

classmates who participate in the health program

She wants to see for herself what all the excitement

is about

Suzie notices the beads on Tucker’s sneakers

Tucker is eager to tell her about them He mentions

he has even more beads at home Suzie wants

to know how many beads Tucker has earned for

participating in the after-school program

Suzie Gets Excited

About the Program

Chapter 2:

Tucker tells Suzie that he has run 12 miles since joining the program He shows Suzie the four beads tied to his shoelaces

Suzie does the math for both of them “If you have run 12 miles, you have earned 12 beads Four beads are tied on your sneakers, so you must have eight beads at home.”

Tucker agrees “Twelve minus four is eight You’re right, Suzie I have eight more beads at home.”

Tucker tells Suzie about the three-mile run

Suzie likes the idea of raising money for the park and earning beads While Suzie is not sure she will run, she knows she will walk during the event to participate

9

DIGITAL FINAL PROOF

Suzie says good-bye to Tucker She thanks him for telling her about the three-mile event She notices two

other classmates coming off the track and she walks

over to say hello

Holly and Keisha just finished going around the track for the second time Now they take a few minutes to

cool down and stretch after their runs Holly takes three

beads from her pocket She ties them on her shoelaces

next to three beads that are already there

Suzie asks Holly, “How many beads have you earned

in the after-school health program?” “I’m not sure,”

Holly says “I never counted all of the beads I have.”

She reaches into her pocket and takes out nine more

colorful beads

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Today’s after-school health program is almost over The walkers and runners finish their last laps

As they come off the track, they drink some cool

water and stretch in the shade Mr Leonard gathers

all the students together “It’s been another great

afternoon of exercise,” he says “It’s also been an

afternoon of math!”

Mr Leonard says that before they dismiss for the day, their last exercise will be a brain exercise

He divides the students into two groups He gives

each group a different problem to solve Both

groups are eager to find the answer to the problem

They get to work right away

Final Brain

Exercise

Chapter 3:

The first group reads the problem Mr Leonard gave them It is 4 + ˙ = 10 The second group takes a look at

their problem, too It is 10 – ˙ = 4 The students discuss

how they will find the missing number in their problems

Each group uses paper and pencil to draw a picture next to the problem They find drawing a picture helps

them with the math In no time at all, each team figures

out the missing numbers in the problem

Mr Leonard sees the students waving their hands enthusiastically He asks each group to choose a team

leader The team leaders will explain their group’s

answer

13

DIGITAL FINAL PROOF

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addend a number that is added to another in

an addition problem

algebra math that uses variables to express

rules about numbers, number relationships, and

operations with numbers

event a noteworthy activity or social occasion

exercise to work to improve or maintain

physical fitness Exercise is also something done

for practice or training

sum the answer to an addition problem

variable a symbol or a letter that stands for an

unknown number









Suzie does the math for both of them “If you have run 12 miles, you have earned 12 beads Four beads are tied on your sneakers, so you must have eight beads. .. will earn three

beads

Liam and Emilio will run in next week’s community event They will help raise money for

the park and they will each earn three beads They

cannot... fill up their sneakers with beads

Now they want to figure out how many more beads

they need to earn after the three-mile run to make

their goal of 14 beads